Crouchen B
Name of the variety in France
Crouchen
Origin
This variety is originally from the south-west of France (Pyrenees, Landes).
Synonyms
In France, this variety can officially be called "Cruchen" regarding plant progagating material.
Legal information
In France, Crouchen is officially listed in the "Catalogue of vine varieties" on the A list and classified.
Use
Wine grape variety.
Evolution of cultivated areas in France
2008 2018
ha 1 0.5
Descriptive elements
The identification is based on:
- the tip of the young shoot with a very high density of prostate hairs,
- the green young leaves with bronze spots,
- the circular dark green adult leaves, with five or seven lobes, lateral sinuses with often a tooth inside, an open or slightly open petiole U-shaped sinus, short to medium teeth with convex or straight sides, low to medium anthocynanin pigmentation of veins, a blistered twisted or revolute leaf blade, and on the lower of the leaf, a low density of erect and prostate hairs,
- the broad ellipsoid berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 131 223 239 178 188 246 240 227 239
Allel 2 149 229 257 186 194 260 248 257 239
Phenology
Bud burst: 7 days after Chasselas.
Grape maturity: mid-season, 3 weeks after Chasselas.
Suitability for cultivation and agronomic production
This variety is adapted to well exposed, gravel or sandy terroirs
Susceptibility to diseases and pests
Crouchen is sensitive to powdery mildew.
Technological potentiality
The bunches are medium in size and the berries small and crunchy. When the grapes are harvested just as it ripens, Crouchen produces dry, elegant and rather aromatic white wines.
Clonal selection in France
The two certified Crouchen clones carry the numbers 1019 and 1020. Two conservatory plots gather more than 90 clones, located in the Landes region and the Irouleguy wine-growing region (French department of Pyrénées-Atlantiques), ensure the conservation of this variety.
Bibliographic references
- Catalogue des variétés et clones de vigne cultivés en France. Collectif, 2007, Ed. IFV, Le Grau-du-Roi, France.
- Documentary collections of the Centre de Ressources Biologiques de la Vigne de Vassal-Montpellier, INRAE - Montpellier SupAgro, Marseillan, France.
- Dictionnaire encyclopédique des cépages et de leurs synonymes. P. Galet, 2015, Ed. Libre&Solidaire, France.
- Traité général de viticulture, Ampélographie. P. Viala and V. Vermorel, 1901-1909, Ed. Masson, Paris, France.
Description of clones certified in France
Identity and availability Agronomic data Technological data Autres informations
Clone no. Marque Origin Selection Year of
certification
Agronomic
references
Surface area used
for propagation (year)
Fertility Production
level
Bunch
weight
Vigor Berry
size
Susceptibility
to grey rot
Sugar
level
Color
potential
Titrable
acidity
Tannic
structure
Aromatic
intensity
Oenological
suitability
New General
note
Agro-tecnic
note
Note
agronomique
Agronomic
note
Links
1019 Pyrénées-Atlantiques ENTAV 1994 Sud-Ouest medium low to medium medium to high low to medium representative wines of the variety
1020 Pyrénées-Atlantiques ENTAV 1994 Sud-Ouest medium medium medium medium representative wines of the variety